How many actual amps does a 1000w lamp pull?

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Study for the GFA Lighting and Electric Test. Enhance your skills with flashcards and multiple choice questions. Each question includes hints and explanations to get you ready for your exam!

Multiple Choice

How many actual amps does a 1000w lamp pull?

Explanation:
Current draw is found from I = P / V. For a 1000-watt lamp on a typical US residential supply of 120 volts, the current is 1000 ÷ 120 ≈ 8.33 amperes, which is 8.3 A when rounded. This assumes the lamp is a simple resistive load and the supply is 120 V close to nominal. If the voltage were different, the current would change accordingly (for example, 1000 W at 240 V would be about 4.17 A).

Current draw is found from I = P / V. For a 1000-watt lamp on a typical US residential supply of 120 volts, the current is 1000 ÷ 120 ≈ 8.33 amperes, which is 8.3 A when rounded. This assumes the lamp is a simple resistive load and the supply is 120 V close to nominal. If the voltage were different, the current would change accordingly (for example, 1000 W at 240 V would be about 4.17 A).

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